text message not showing help

[raymondtrudeau]

Hi I just came from ipone 3gs and I dont know why but when I get a text when my phone is asleep it would whistle and just show new message not the messsge like iPhone does also if I am playing a video or on the Internet and I receive a text I hear the whistle but it does not pop up and show it for a couple of seconds like iPhone
I hope it can do the ssme things as iPhone
thanks